Weather forecast for 10 daysUnion, UT

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 70°F
  • 46°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphWSW 249°
  • Humidity: 29%
  • UV index: 4
  • Sunrise: 7:41 am MDT
  • Sunset: 6:44 pm MDT
  • ▼
Today, sunny and dry conditions are anticipated.
The maximum temperature will be an agreeable 69.8°F, while the minimum temperature will be a chilly 46.4°F.
The warmer conditions bring a maximum of 69.8°F, more representative of September than October.
Sunrise was at 7:41 am and sunset will be at 6:44 pm; the daylight will last for 11h and 4min.

Sunday Oct 18, 2026

  • 68°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSW 202°
  • Humidity: 40%
  • UV index: 4
  • Sunrise: 7:42 am MDT
  • Sunset: 6:42 pm MDT
  • ▼
Tomorrow, on Sunday, October 18, some passing clouds may drift through, but the sun will shine at times.
The maximum temperature will be an agreeable 68°F, while the minimum expected temperature is a chilly 46.4°F.
Tomorrow, the maximum temperature of 68°F will resemble September's climate more than October's.
Sunrise will be at 7:42 am and sunset at 6:42 pm; tomorrow's daylight will last for 11h and 1min.

10-day overview

Daily temperatures

Maximum temperature: 70°C.
Coldest day: Friday 52°C.

Chance of precipitation

Highest chance: Friday 74%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 70°F
  • 46°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphWSW 249°
  • Humidity: 29%
  • UV index: 4
  • Sunrise: 7:41 am MDT
  • Sunset: 6:44 pm MDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 68°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSW 202°
  • Humidity: 40%
  • UV index: 4
  • Sunrise: 7:42 am MDT
  • Sunset: 6:42 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 8mphS 186°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:43 am MDT
  • Sunset: 6:41 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 68°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 7mphSSW 194°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:44 am MDT
  • Sunset: 6:40 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 54°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphS 183°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:45 am MDT
  • Sunset: 6:38 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 66°F
  • 46°F
PM Showers
PM Showers
  • Precip. probability: 60%
  • Precipitation: 0.47"
  • Wind: 9mphSSE 166°
  • Humidity: 68%
  • UV index: 4
  • Sunrise: 7:46 am MDT
  • Sunset: 6:37 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 52°F
  • 39°F
Rain
Rain
  • Precip. probability: 74%
  • Precipitation: 0.43"
  • Wind: 9mphSW 219°
  • Humidity: 84%
  • UV index: 2
  • Sunrise: 7:47 am MDT
  • Sunset: 6:35 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 55°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 7mphSSW 212°
  • Humidity: 68%
  • UV index: 4
  • Sunrise: 7:48 am MDT
  • Sunset: 6:34 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 61°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 8mphS 187°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 7:49 am MDT
  • Sunset: 6:33 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 57°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 7mphSSW 199°
  • Humidity: 68%
  • UV index: 4
  • Sunrise: 7:51 am MDT
  • Sunset: 6:31 pm MDT
  • ▼
For the next ten days, a combination of dry and sunny, gloomy and rain-filled weather is forecasted.
Rainfall is forecasted for Thursday and Friday.
Significant changes in temperature are expected in the coming days. Forecast highs will fluctuate between 51.8°F and 69.8°F, while the fluctuation in night temperatures will be also significant, as the minimum temperature is expected to range between 39.2°F and 53.6°F.
Saturday, Monday and Wednesday, with the highest temperature of 69.8°F, will be the warmest days in Union; the lowest daytime temperature of the period will be reached on Friday, peaking at 51.8°F.
Updated: Oct 17, 2026 @ 17:10:47 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, the outlook remains bright and sunny.

Today, the highest temperature will be 69.8°F, while the lowest temperature will be 46.4°F.
Today, the maximum temperature will be notably higher than the average highest temperature of 57.2°F in October. The lowest temperature today will be moderately higher than the average low temperature.

On Saturday, in Union, sunrise was at 7:41 am and sunset will be at 6:44 pm (MDT).

In Union, today, there will be 11h and 4min of daylight.

Tomorrow, a partly cloudy outlook will keep the sky interesting throughout the day.

Tomorrow, the maximum temperature will be 68°F, while the minimum temperature will be 46.4°F.
The highest temperature tomorrow will be notably higher than the average maximum of 57.2°F in October. Tomorrow, the lowest temperature will be moderately higher than the average low temperature.

On Sunday, in Union, sunrise will be at 7:42 am and sunset at 6:42 pm (MDT).

In Union, the length of the day tomorrow will be 11h and 1min.